Davis School District - Microsoft Engineer Jim Federico, center, assists at Northridge High School. | Facebook
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Argentina's Federico Delbonis returns to Croatia's Ivo Karlovic during their Davis Cup finals tennis singles match in Zagreb, Croatia, Sunday, Nov. 27, 2016. (AP Photo/Darko Vojinovic Stock Photo - Alamy
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Tennis - Croatia v Argentina - Davis Cup Final - Arena Zagreb, Croatia - 27/11/16 Argentina's Juan Martin
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